September weather forecastOwyhee, NV
September
Weather in September
September, the first month of the autumn in Owyhee, is still a pleasant month, with an average temperature fluctuating between 48.2°F (9°C) and 69.1°F (20.6°C).Temperature
Transition from August to September is accompanied by a temperature drop, with average high-temperatures decreasing from a warm 79°F (26.1°C) to an agreeable 69.1°F (20.6°C). Owyhee records a mean low-temperature of 48.2°F (9°C) in September.Humidity
In Owyhee, the average relative humidity in September is 37%.Rainfall
In Owyhee, Nevada, during September, the rain falls for 7.4 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Owyhee, during the entire year, the rain falls for 92.8 days and collects up to 15.2" (386mm) of precipitation.Snowfall
Months with snowfall in Owyhee are January through June, September through December. September is the first month it typically snows. Throughout September, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow. In Owyhee, during the entire year, snow falls for 94.1 days and aggregates up to 71.42" (1814mm) of snow.Daylight
In September, the average length of the day is 12h and 28min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of September, sunrise is at 6:41 am and sunset at 6:27 pm PDT.
Sunshine
In September, the average sunshine is 10.2h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Undertake precautions - It is suggested to shield oneself from sunburn. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Owyhee, NV
- Average high temperature in September: 69.1°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is December (28.4°F).
- Average low temperature in September: 48.2°F
The month with the highest average low temperature is July (55.2°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Owyhee, NV
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.26"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).
Average wind speed in September
Owyhee, NV
- Average wind speed in September: 6.5mph
The windiest month (with the highest average wind speed) is April (8.2mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in September
Owyhee, NV
- Average humidity in September: 37%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (31%).
Average rainfall in September
Owyhee, NV
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is December (2.05").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in September
Owyhee, NV
- Average rainfall days in September: 7.4 days
The month with the highest number of rainy days is May (12.3 days).
The month with the least rainy days is December (5 days).
Average snowfall in September
Owyhee, NV
- Average snowfall in September: 0.35"
The month with the highest snowfall is December (14.69").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Owyhee, NV
- Average snowfall days in September: 0.6 days
The month with the highest number of snowfall days is December (17.1 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Owyhee, NV
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 10h and 12min
The month with the most sunshine is August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and February (Average sunshine: 5h and 24min).
Average sunshine days in September
Owyhee, NV
- Average sunshine days in September: 20.7 days
The month with the most sunshine days is August (22.4 days).
The month with the least sunshine days is April (11.4 days).
Average UV index in September
Owyhee, NV
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The month with the lowest UV index is November (UV index 1).
Average cloud cover in September
Owyhee, NV
- Average cloud cover in September: 14
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in September
Owyhee, NV
- Average visibility in September: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February and December (5mi).





